Product Overview
Developed by absorbing advanced design concepts from foreign equivalent equipment, this machine adopts a four-stage continuous spray treatment process: circulating warm water preheating, circulating hot water sterilization, circulating warm water pre-cooling, and final cooling water spray cooling.
It is equipped with an automatic sterilization temperature control system and stepless adjustable conveyor speed, so that sterilization duration can be flexibly adjusted to match different process requirements. It is widely applied for sterilization and cooling of various bottled and canned products including acidic fruit juice beverages, electrolyte drinks, wines and condiments. The equipment can be fully designed and customized according to the user’s specific sterilization conditions and production capacity demands.
Equipment Features
Equipped with preheating, sterilization, pre-cooling and final cooling zones. Gradual temperature change prevents thermal shock to packaging, ensuring stable sterilization and intact product quality.
High precision constant temperature control, stepless adjustable conveyor speed. Sterilization duration can be flexibly set to match different beverage processing demands.
Adopts cascade heat recovery circulation design. Greatly reduces steam and cooling water consumption, effectively cutting long-term factory operating costs.
Full food-grade stainless steel construction, easy to clean and meet food hygiene standards. Tunnel continuous design supports large-scale production, and all parameters can be customized for workshops.
- Four-stage gradient spray process The whole machine is divided into four functional sections: preheating, sterilization, pre-cooling and final cooling. Products go through gradual temperature rise and fall, which avoids thermal shock to packaging and contents, ensuring both stable sterilization effect and intact product quality.
- Precise automatic control & stepless speed regulation Sterilization temperature is automatically controlled with high precision. The conveyor belt speed is stepless adjustable within 110–553 mm/min, so that sterilization duration can be flexibly set to match different product process requirements.
- Circulating water system for energy efficiency Adopts a closed-loop circulating water system with cascade heat utilization, which effectively reduces steam and cooling water consumption and significantly lowers long-term operation cost.
- Food-grade all-stainless steel construction The whole machine body and all product-contact parts are made of food-grade stainless steel, with smooth surface, excellent corrosion resistance and easy cleaning performance, fully complying with food production hygiene standards.
- Customizable engineering design The equipment can be fully designed and manufactured according to the user’s specific sterilization process parameters, production capacity and workshop layout requirements, with strong process adaptability.
- Reliable continuous production Tunnel-type continuous structure enables uninterrupted in-line production with stable and reliable operation. It greatly improves production efficiency and is perfectly suitable for large-scale industrial production lines.
Working Principle
Packaged products are fed onto the mesh conveyor belt at the inlet, and pass through each functional section continuously at a constant speed.
First, products enter the preheating section, where circulating warm water is uniformly sprayed onto the product surface to raise temperature gradually and avoid thermal shock. Then they move into the sterilization section, where steam-heated circulating hot water is sprayed to maintain products at the preset sterilization temperature for the required duration to complete pasteurization.
After sterilization, products enter the pre-cooling section and are cooled down gradually by circulating warm water spray. Finally, they pass through the cooling section and are cooled to the required outlet temperature by cold water spray.
All spray water is recycled after filtration and temperature regulation. The whole process runs continuously and automatically, with uniform temperature distribution and consistent sterilization effect.
Technical Parameters
General Specifications
| Item | Parameter |
|---|---|
| Maximum Sterilization Temperature | 100℃ |
| Conveyor Belt Width | 1500 mm |
| Conveyor Belt Speed | 110 – 553 mm/min |
| Heating Steam Pressure | 0.4 MPa |
Model-specific Parameters
| Items | PLS-1000 | PLS-2000 | PLS-3000 | PLS-5000 |
|---|---|---|---|---|
| Sterilization Section Length (mm) | 9000 | 16000 | 22000 | 32000 |
| Pre-cooling Section Length (mm) | 1200 | 1600 | 1800 | 2200 |
| Cooling Section Length (mm) | 3000 | 5000 | 8000 | 10000 |
| Heating Circulating Water Volume (m³) | 21 | 25 | 35 | 50 |
| Total Installed Power (kW) | 9.6 | 10.6 | 13.6 | 16.5 |
| Overall Length (mm) | 9880 | 17880 | 23800 | 34880 |
| Overall Width (mm) | 2250 | 2250 | 2250 | 2250 |
| Overall Height (mm) | 1735 | 1735 | 1735 | 1735 |
Note: The original datasheet has a typo marked as “voltage (kW)”, which is sorted as total installed power here. The 320000mm length in the original table is judged as a typesetting error and corrected to 32000mm. Data is for reference only. All specifications can be customized according to actual production requirements.
Application Fields
- Beverage industry: Sterilization and cooling of bottled and canned acidic fruit juice, electrolyte drinks, tea beverages, plant protein drinks and various packaged beverages
- Wine industry: Pasteurization of bottled fruit wine, rice wine, craft beer and other wine products
- Condiment industry: Sterilization of bottled and canned sauces, vinegar, soy sauce and various condiment products
- Other food industries: Sterilization and cooling of various packaged products in canned food, dairy, leisure food and other food processing sectors
